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Using Local Ecological

Knowledge to DescribeSea Nettle Population Dynamics

in Barnegat Bay, NJ

By: Monica Chang, Taylor Donovan, Quinn Dunlea, Arianna Grace,

Cassie Leahy, Meaghan Martin, Brooke Minotti, Demi Palmer, Sohia

Porras, !ussell "hitsitt, #ach #ega

Marine Aca$emy o% Technology an$ &nvironmental Science 'MAT&S(,Manaha)kin, *+ -.

A$visor: Talia /oung

!utgers 0niversity Marine 1iel$ Station,

Tuckerton, *+ --2

*3$3 Photograh3 Stock Photo4 Getty 5mages3 Weather.com3 The "eather Channel, LLC, 62 +une 6763 "e83 7 9ct3 673

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Outline

; Backgroun$

< Sea nettles

< The ro8lem

; 9ur goals

; Metho$s

; !esults

; Possi8lee=lanations

Photo %rom htt:44883ocean3e$u4ages463as

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Bacground

!ommon name: Sea nettleScienti"ic name: Chrysaora quinquecirrha

#abitat: Temerate )aters an$ estuaries )hich

are lo) in salinity

$ange:

;Atlantic Coast

;Gul% o% Me=ico to *e) &nglan$

Diet: Carnivorous:

;#oolankton

;Ctenohores;1ish eggs an$ larvae

'Cal$er 7>26(

'Purcell et al3 7>>?(

Photo taken 8y "es Dal@ell on 9cto8er 6-, 673 ettle Creek,

Brick To)nshi3

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$eproduction

A$ults $o not survive

the )inter, olys $o

Se=ual rero$uction

Ase=ual rero$uction

Deretsky, #ina3 Li%e Cycle o% a +elly%ish3 Digital image3 #ina Stu$io3 *ational Science 1oun$ation, ? May 673 "e83 Accesse$ Set3 673

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Our Study %rea& Barnegat Bay

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Sea Nettles in Barnegat Bay

; 1irst $ocumente$ in 7>6-,8ut no) more a8un$ant'?>th*+ State Agricultural &=eriment Station !eort(

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'(at is t(e Problem)

; Deter recreation

. to 6< Greater than years on 8ay:

67 intervie)ees

< Less than years on 8ay:

77 intervie)ees

$elations(ip to bay Number o"interiewees

!ecreational 7-

Commercial %ishermen E

Scientist ?

9ther 'li%eguar$, 8ay e$ucator( 6

Photo cre$it: Taylor Donovan

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Surey +nstrument

; 7- uestions:< History on 8ay

< 1reuency on 8ay< Activities on 8ay

< 1irst sighting o%

sea nettles on 8ay

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$esults

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*ore results

Median year:

LongItime users: 6

More recent users: 62

Median year:

!ecreational:6

!ommercial& -../

Scientists: 6E

9ther: 6

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Possible e0planations

73 Bulkhea$ing s)itch:early 6Js: creosoteItreate$ )oo$ to vinyl

htt:44mathesonconstruction3com httI)))3merchantcircle3com8usiness+3An$3L3"ater%ront3Construction36.6I227I>>.Eicturevie)7272>

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63 Poulation gro)th, increase$ nutrient loa$ingan$ eutrohication

Possible e0planations

Poulation $ensity in 9cean County

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Possible solutions

; &$ucation

< "hy is this issue imortant, %or coastal an$ inlan$

resi$entsK

; Mitigation strategies

< Barrier nets 'me$usae(

< Bu88lers 'me$usae(

< Bulkhea$ scraing 'olys(

httIsaveourseas3comroectssharksotters@au$ateonthe%ishhoeke=clusionnetroect

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%cnowledgments

; 9urintervie)ees; MAT&S:

+ "nek, + elsey

; !utgers 0niversity

Marine 1iel$ Station: A8le, ! Hagan

; Metho$ological suort:A Baker, A Gor$on, D arna$, S /ahm, T #immerman

; 1in$ing intervie)ees:

A Anholt, Caone, ! 1o=, S #eck

; 1un$ing:!utgers 0niversity GA an$ *S1IG!1P to T /oung

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1uestions)